Improved rotary tire-heater



G. T. RIDINGS.

Rotary Tire Heater.

Patented my 10, 1866.

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UNITED STATES PATENT OFFICE;

GEORGE T. RIDINGS, OF SHELBYVILLE, MISSOURI.

IMPROVED ROTARY TIRE-HEATER.

Specification forming part of Letters Patent No. 56,270, dated July 10, 1866.

that the following is a full and exact description thereof, reference being had to the ac- -companying drawings, and to the letters of reference marked thereon.

Figure l of the annexed drawings is an elevation, in perspective, of one of the tire-heaters. Fig. 2 is a sectional elevation of the same. Fig. 3 is a transverse vertical section.

The nature of this invention consists in the employment of a metallic cylindric drum for inclosing the tires during the process of heating them, which is done over an ordinary smiths nre, the heat from which enters an opening formed in one side of the drum, while a similar opening is made in the opposite side of it for the exit of the smoke. This drum should be erected on a swinging crane, soit may be thrown back out ofthe way when not in use. The interior ofthe drum is to be fitted with an adjustable rotary frame, on which the tires are to be placed for the purpose of being heated.

To enable those skilled in the art to make and use my machine, 1 will proceed to describe its construction and operation.

A is a cylindric drum, of which the side B is made in the form of a door, the whole being attached to'a swinging` post or crane, G, as clearly shown in Fig. 1. An opening is made in the bottom part of the drum at A for the admission of the heated air and gases to the interior of it, and an opening', A2, in the top of it for the exit of the smoke.

A rotary frame or tire-holder is placed upon the axle D within the drum. This tire-holder is constructed in the following manner: On the axle D there is a loosely-fitting hub, a, from which radiate any-required number of spokes, c', and connected with these, by means of the metallic bauds c2, or their equivalents, is another set of spokes, a3, arranged to slide easily within the said bands or other attachments, so that their outer ends may he set at a greater or lesser distance from the center of the hub. Thereisaseries of segmental plates, b, attached to the outer ends of the spokes a3, the whole forming, when completed, as shown in Fig. 2, an annular tire-holder, which may receive a rotary motion by turning the axle D around, for the purpose of doing which it is provided with a crank, D. There is a series of cogs, c, on the side of the spokes c3, into which is fitted the endless screw c. of the wheel c2, the wheel c2 being iirinly secured to the axle D.

The bearings of the axle D are in the adjustable pillow-blocks D2, which admit of a vertical'adjustinent through the medium of the ratchet-pawls t, as clearly shown Vin Fig l.

The machinebeing thus constructed, the drum A should be swung around so that the admis' sion-orifice A will come directly over the tire which is to be used for the heating operation.

By having the post O conveniently located in a siniths shop one of the ordinary ires employed in the shop may be used to heat the tires without any 'additional expense for fuel, which is an item of considerable importance in the present crude arrangements for this o-peration.

The tires to be operated upon are to be introduced into the drum through the door B and placed upon the jointed rim formed ofthe plates b, which will then be expanded out to fit and lhold the tires by simply turning the wheel c2 by means of the crank D', care being taken to turn the crank in the direction in which the endless screw c will press against the teeth or cogs c of the spokes c3, so as to push them .outward from the hub. As soon as the plates b are pressed out tightly against the tires the whole tire-holder with its load will revolve withthe turning axle, bringing every portion of the tire in regular and constant succession to the point nearest the heating-orice A', thereby insuring a regular and even heating of all parts of the tire.

By using the adjustable pillow-blocks D2 the tire-holder may be moved up or down, so that whether large or small tires are being heated they may be kept as close down to the orifice A as the machine will revolve.

When small tires are being heated an economy of heat may be effected by moving' the concave adjustable plates g down close to the tire and then securing them in place by means of the pins 1l, for the reception of which a series of holes, i', are prepared in the drum.

Having described my invention, what I tire-holder and drum in a vertical position, the tire-holderturning on a horizontal axis, and the Whole operating` in combination With a common forge-fire, substantially as set forth.

2. The combination and arrangement of the adjustable tire-holder With the drum by means of the pillow-blocks D2 and pawls t and the adjustlable plates g, as and for the purpose set forth.

3. The combination and arrangement of the spokes a and a3 and the segmental plates b withI the endless screw c and Wheel c2, as and for the purpose set forth.

GEORGE T. RIDI'NGS.

Witnesses i M. RANDOLPH, lA. WAGNER. 

